Platinum print : journal of personal expression (1913)
New York : E.R. Dickson · leaf 18
P & S Semi'Achromatic Lenses … Doublet for portraiture, F. 4.5. Regarding our S. A. Lenses, Alvin Langdon Coburn says: "If I were to be told that I must work for the remainder of my life with but one lens, I would choose the original fifteen-inch objective that Mr. Smith made for me so many years ago." Speaking of our doublets,…
Photography
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-210-123.webp)
